>>47458797they add gen 3-4 pokemon for transfer, more postgame stuff, better graphics, and neat qol/cosmetic stuff, but it still has the core gameplay problems of the original gsc such as pace and the difficulty/level gap, kanto being barebones (kanto was good because of its side shit, theres nothing to do there except for really easy gym leader rematches), along with the nonsensical almost non existent story and almost never utilizing new johto pokemon
also dumbs down the dialogue a bit